Do UV lamps in HVAC systems actually kill germs?

Yes — germicidal UV-C light neutralizes bacteria, viruses, and mold spores by disrupting their DNA. Installed at the evaporator coil, a UV lamp keeps the coil’s damp surface free of biological growth; installed in the airstream, it treats air as it passes.

Placement and Annual Service Make the Difference

Two caveats: placement matters, and lamps lose germicidal output long before the blue glow fades — most need annual replacement to stay effective. That is why UV lamp maintenance is an add-on to All Set maintenance plans; a lamp unserviced for years is often doing almost nothing.

Why Northwest Suburbs Homeowners Choose All Set

All Set HVAC is the Northwest Suburbs’ local indoor air quality expert — home of the $99 Air Score Test. From air quality testing and purification to HVAC maintenance plans and new system installations, our licensed Arlington Heights technicians find the cause, fix it right, and back it with the All Set Guarantee. Call (847) 807-6100 or schedule your Air Score Test today.